Removal of As (V) from contaminated waters by microorganisms and isolated S-layers


Removal of As (V) from contaminated waters by microorganisms and isolated S-layers

Matys, S.; Stein, R.; Katzschner, B.; Raff, J.; Soltmann, U.; Böttcher, H.; Kießig, G.; Pompe, W.

With the objective to develop new filter materials for cleaning of arsenic contaminated waters based on sol-gel immobilized microorganisms various bacterial strains and their isolated surface layers were investigated. Interestingly, the binding capacity of four S-layers, namely that of Lysinibacillus sphaericus NCTC 9602, Bacillus soil isolates JG-B 53 and JG-B 62 as well as Geobacillus stearothermophilus ATCC 12980 was 1.5 to 5fold enhanced in comparison to the commercial sorbent Ferrosorp with As(V) model solutions. Thereby, a different binding behaviour between whole cells and their corresponding S-Layers could be observed even in dependence on the used arsenic concentration. AFM investigations revealed more elevated and expanded S-Layer agglomerates in the case of G. stearothermophilus ATCC 12980 after loading with As.

  • Poster
    8th Symposium on remediation in Jena “Jenaer Sanierungskolloqium”: Geo-bio-processes at geochemical barriers, 28.-29.09.2009, Jena, Deutschland

Permalink: https://www.hzdr.de/publications/Publ-13136
Publ.-Id: 13136